Russia has issued a notice to airman (NOTAM) warning of an impending 'rocket test' off the eastern coast of Libya next week. From May 24th through the 27th.
Apparently they have two land attack capable cruise missile capable warships in the area.
Russia is backing a Libyan general in the east of the country who is at odds with the UN backed government in Tripoli.
This looks to be something to do with the oil fields and ISIL controlling quite a few of them at the moment.
Is Putin helping his man in Libya and/or looking to reduce ISIL cash flows?